Neural Systems, Emotion and Personality

Jeffrey Gray's neurobiological account of the two major personality dimensions — anxiety (BIS) and impulsivity (BAS) — and their neural substrates.

BIS/BAS theory fully developed: the Behavioral Inhibition System (anxiety, sensitivity to punishment) and Behavioral Activation System (impulsivity, sensitivity to reward) as the two fundamental dimensions of personality — each with distinct neural substrates. The septo-hippocampal system as the neural basis of anxiety. A bridge between animal learning theory and human personality psychology.